CVE-2026-72777: Next AI Draw.io 0.4.16 SSRF via DNS Rebinding in parse-url

Severity: high (CVSS 8.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-13 · updated 2026-09-09
Weakness: CWE-918

Description

Next AI Draw.io through 0.4.16 contains a server-side request forgery vulnerability in the POST /api/parse-url endpoint due to hostname validation that only checks string patterns without DNS resolution. Unauthenticated attackers can supply hostnames that bypass string validation but resolve to internal addresses, allowing them to reach arbitrary internal HTTP services and exfiltrate responses including cloud metadata.

Affected products

DayuanJiang next-ai-draw-io: through 0.4.16

References

https://github.com/DayuanJiang/next-ai-draw-io/issues/918
https://www.vulncheck.com/advisories/next-ai-draw-io-ssrf-via-dns-rebinding-in-parse-url

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